cases that changed america. for the next hour i'll examine high profile trials that for better or for worse forever altered america's justice system. from the spectacle of the michael jackson molestation trial, where he was found not guilty on all counts. the media circus outside the courtroom, as bizarre as the twists and turns on the witness stand. i'll analyze how celebrity complicates cases in this 24/7 news culture and whether a different standard of justice applies to stars. >>> to trials that create celebrity. scott peterson killed his pregnant wife but before he was sentenced to death in 2006, he became a pop culture phenomenon. this strange case showed us that a horrific crime in anytown usa can grip the entire nation. >>> plus, we'll look at the most infamous celebrity trial of them all, o.j. simpson's double murder trial. all the evidence pointed to simpson in the double murder of his ex-wife nicole, and her friend ron goldman. but o.j. was amazingly acquitted. the case ushered in the era of legal tel